Musician Yoshi Akai is an unorthodox musician. He dreams up ways to turn color into sound, and other unusual ways of producing music. Like this Lego Sequencer MR II, which uses three-dimensional Lego structures to emulate a three-channel, eight-step sequencer.
Each differently colored plastic brick produces a different sound and complex combinations (including tremolo and overdrive) are possible when the blocks are stacked. It works using resistors in every block, with parallel networks of resistors formed as the bricks pile up, equalling lower resistance, which means a higher frequency sound is generated.